Discovering the WebAPI response with Angular2 Http.Post

Question

Discovering the WebAPI response with Angular2 Http.Post

Just dipping my toes into Angular2/Typescript as I work on my very first web application.

I've been experimenting with calling a web API using POST, and it's working smoothly. When I intercept the call with FIDDLER, I'm able to see the JSON response without any issues.

Now, my next step is figuring out how to log the JSON output in the browser console.

Here's the code snippet:

code snippet

var s = this.myService.doSearch();
s.subscribe(
    data=> this.data = data,
    error => this.errorMessage = <any>error
);

console.log(s);

service method

doSearch() {
var url = this.baseUrl;

return this.http.get(url)
    .map(response => response.json())
    .catch(this.handleError);
}

So, the burning question is: where and how can I access and manipulate the JSON Output?

Thanks!

json angular typescript asp.net-web-api http-post

Answer 1

Answer №1

Make sure to use console.log once the asynchronous code has completed:

var result = this.myService.performSearch();
result.subscribe(
    data=> {
          this.responseData = data;
          console.log(data);
    },
    error => this.errorMessage = <any>error
);

Answer 2

Make sure to use console.log once the asynchronous code has completed:

var result = this.myService.performSearch();
result.subscribe(
    data=> {
          this.responseData = data;
          console.log(data);
    },
    error => this.errorMessage = <any>error
);

Answer 3

Answer №2

If you want to troubleshoot or test your application in the browser, you can simply go to inspect and then switch to the Network tab. Within this tab, locate your POST Request and then navigate to the Response tab to view your JSON response.

Edit:

If you wish to log all response data, follow these steps:
return this.http.get(url)
    .map(res => res.json())
    .subscribe(data => { console.log(data); })
    .catch(this.handleError);
}

Answer 4

If you want to troubleshoot or test your application in the browser, you can simply go to inspect and then switch to the Network tab. Within this tab, locate your POST Request and then navigate to the Response tab to view your JSON response.

Edit:

If you wish to log all response data, follow these steps:
return this.http.get(url)
    .map(res => res.json())
    .subscribe(data => { console.log(data); })
    .catch(this.handleError);
}

Answer 5

Answer №3

Give this a try - it will display the contents of your returned observable.

var result = this.myService.doSearch();
result.subscribe(data=> {
       this.data = data;
       console.log(data);
       },
       error => this.errorMessage = <any>error
);

Keep in mind that to retrieve data from an observable, you must subscribe to it.

You cannot simply log it like this console.log(result); because result is an observable. You need to subscribe and access the data inside the subscription function.

Answer 6

Give this a try - it will display the contents of your returned observable.

var result = this.myService.doSearch();
result.subscribe(data=> {
       this.data = data;
       console.log(data);
       },
       error => this.errorMessage = <any>error
);

Keep in mind that to retrieve data from an observable, you must subscribe to it.

You cannot simply log it like this console.log(result); because result is an observable. You need to subscribe and access the data inside the subscription function.

Discovering the WebAPI response with Angular2 Http.Post

code snippet

service method

Answer №1

Answer №2

Answer №3

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